86881861 has 8 divisors (see below), whose sum is σ = 94860000. Its totient is φ = 78917040.

The previous prime is 86881859. The next prime is 86881877. The reversal of 86881861 is 16818868.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 86881861 - 2¹ = 86881859 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86881831) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14490 + ... + 19588.

It is an arithmetic number, because the mean of its divisors is an integer number (11857500).

Almost surely, 2^86881861 is an apocalyptic number.

It is an amenable number.

86881861 is a deficient number, since it is larger than the sum of its proper divisors (7978139).

86881861 is a wasteful number, since it uses less digits than its factorization.

86881861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6659.

The product of its digits is 147456, while the sum is 46.

The square root of 86881861 is about 9321.0439865929. The cubic root of 86881861 is about 442.9041044446.

The spelling of 86881861 in words is "eighty-six million, eight hundred eighty-one thousand, eight hundred sixty-one".